745331817 has 8 divisors (see below), whose sum is σ = 998041824. Its totient is φ = 494754848.

The previous prime is 745331809. The next prime is 745331827. The reversal of 745331817 is 718133547.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 745331817 - 2³ = 745331809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (745331827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 532443 + ... + 533840.

It is an arithmetic number, because the mean of its divisors is an integer number (124755228).

Almost surely, 2^745331817 is an apocalyptic number.

It is an amenable number.

745331817 is a deficient number, since it is larger than the sum of its proper divisors (252710007).

745331817 is a wasteful number, since it uses less digits than its factorization.

745331817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066519.

The product of its digits is 70560, while the sum is 39.

The square root of 745331817 is about 27300.7658683781. The cubic root of 745331817 is about 906.6713382082.

The spelling of 745331817 in words is "seven hundred forty-five million, three hundred thirty-one thousand, eight hundred seventeen".